The TV sitcom Frazier ran from 1993-2004. Frazier Crane was a psychiatrist with a radio show featuring call-ins. The people that called in were often celebrity voices that few recognized, but the actors on the phone were credited only at the end of each season. Here, we know who’s talking in each one. We also get to see Dr. Crane (Kelsey Grammer) age ten years over just a few minutes. -via Viral Viral Videos